raziel (the thread you already found about the 50 digitizers) probably still has some left.I got 2 from him for basically nothing (iirc 3€ per board plus shipping) a year ago and he said that he still has quite a lot of them left.If not I could send you one as I don't need them at the moment (if you don't mind that I already connected a few wires instead of the connector and a 3.3V regulator that is ^^)